EKG Rhythm Strip Quiz 35

Identify the following rhythms.

1.

a.  Normal sinus rhythm with 1st degree block

b.  Sinus bradycardia

c.  Atrial flutter

d.  2nd degree heart block type II

2.

a.  Atrial paced with multifocal PVCs

b.  Ventricular paced with unifocal PVCs

c.  AV paced with uniform PVCs

d.  Biventricular paced with multiform PVCs

3.

a. Sinus tachycardia

b. Atrial flutter with rapid ventricular response

c. Multifocal atrial tachycardia

d. Supraventricular tachycardia

4.

a. Sinus tachycardia with atrial ectopy

b.  Normal sinus rhythm with occasional PACs

c.  Sinus rhythm with frequent multifocal PVCs

d.  Sinus rhythm with premature junctional contractions

5.

a. Bradycardia with 1st degree AV block

b.  Idioventricular rhythm

c.  Junctional rhythm

d.  Atrial fibrillation with slow ventricular response

6.

a. Sinus rhythm with atrial ectopic beats

b.  Sinus tachycardia with a couplet of PVCs

c.  Sinus tachycardia with frequent multifocal PVCs

d.  Sinus rhythm with premature junctional contractions

7.

a. Supraventricular tachycardia with PACs

b.  Multifocal atrial tachycardia

c.  Atrial fibrillation with variable ventricular response

d. Paroxysmal sinus tachycardia

8.

a. Bradycardia with sinus arrhythmia

b.  Idioventricular rhythm

c.  2^nd degree heart block type I

d.  Atrial fibrillation with slow ventricular response

9.

a. Normal sinus rhythm

b.  Sinus bradycardia

c.  Sinus tachycardia

d.  1st degree AV block

10.

a.  Atrial flutter

b.  2^nd degree heart block type II

c.  Atrial fibrillation

d. Sinus tachycardia

Answers

1.

a. Normal sinus rhythm with 1st degree block. The PR interval is 0.28 sec. The QRS is wide, 0.12 sec.

2.

c. AV paced with uniform PVCs. The 1st, 3rd, 7th complex are ventricular paced. The 1st and 2nd PVCs might represent a fusion complex in which you have a pacing stimulus and a PVC occurring simultaneously.

3.

c. Multifocal atrial tachycardia. There are greater than 3 P waves of differing morphology this qualifies it as a multifocal atrial tachycardia

4.

c. Sinus rhythm with frequent multifocal PVCs. The first two PVCs differ in shape and size from the remaining PVCs.

5.

a. Bradycardia with 1st degree AV block.  The PR interval is 0.28 sec.

6.

b. Sinus tachycardia with a couplet of PVCs.


7.

c. Atrial fibrillation with variable ventricular response. The rhythm is irregular with an absence of P waves.

8.

a. Bradycardia with sinus arrhythmia. The R-R interval varies in length. No ectopy is present.

9.

a. Normal sinus rhythm

10.

b. 2nd degree heart block type II. There are extra, non-conducted, P waves present. The PR interval is constant from beat to beat.


Reviewed 6/4/13, 3/2/16